| Project/Area Number |
26287034
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Osaka Sangyo University |
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Principal Investigator |
Inoue Akio 大阪産業大学, デザイン工学部, 准教授 (30411424)
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| Co-Investigator(Renkei-kenkyūsha) |
Ouchi Masami 東京大学, 宇宙線研究所, 准教授 (40595716)
Kashikawa Nobunari 国立天文台, TMT推進室, 准教授 (00290883)
Hasegawa Kenji 名古屋大学, 理学研究科, 特任助教 (20536627)
Ishiyama Tomoaki 千葉大学, 統合情報センター, 准教授 (90616426)
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| Research Collaborator |
Shimasaku Kazuhiro 東京大学, 理学系研究科, 准教授
Shimizu Ikkoh 大阪大学, 理学研究科, 特任研究員
Mawatari Ken 大阪産業大学, 教養部, 博士研究員
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
Fiscal Year 2016: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 宇宙再電離 / 光学赤外線天文学 / 銀河形成 / 銀河進化 / 光赤外線天文学 / 理論天文学 / 銀河間中性水素 / 銀河形成進化 |
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| Outline of Final Research Achievements |
To understand cosmic reionization, one of the greatest problems in the modern observational cosmology, we have developed a novel method for mapping the ionization degree of the intergalactic hydrogen. The method is based on the observations with the Hyper Suprime-Cam (HSC) at Subaru Telescope and a large-scale numerical simulation of reionization including a theoretical model of Lyman alpha emitters (LAEs). The LAE simulation has been published in a refereed journal. The Subaru/HSC observational part has been extended to a larger framework using 5 custom-made narrowband filters for HSC, a Subaru Intensive Program called CHORUS (Cosmic HydrOgen Reionization Unveiled with Subaru). In parallel, a number of research papers were published as an outcome of this project: Intergalactic hydrogen in/around a redshift ~3 proto-cluster of galaxies, ionization emissivity of galaxies at redshift ~3, spectral modeling of primordial galaxies, and oxygen observations from high redshift galaxies.
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